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Effects of invasive ants on the Japanese biota, and mechanisms underlying the expansion of their distribution

入侵蚂蚁对日本生物群的影响及其分布扩大的机制

基本信息

批准号：
14540579
负责人：
ITO Fuminori
金额：
$ 2.3万
依托单位：
Kagawa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14540579/
关键词：
ant Argentine ant invasive insect distribution 侵入害虫外来生物生物多様性種間競争捕食

项目摘要

The distribution of the Argentine ant, Linepithema humile, in Japan, and effect of the ant on the Japanese biota were investigated. Main results are as follow. 1.The distribution of the Argentine ant was investigated in 65 cities or towns along the Seto Inland Sea, western Japan. Our results include all available information of their distribution in Japan until 2005. Argentine ants have invaded Aichi Pref. (Tahara-shi), Hyogo Pref. (Kobe-shi), Hiroshima Pref. (Hiroshima-shi, Fuchu-cho, Hatsukaichi-shi, Ono-cho, Otake-shi), and Yamaguchi Pref. (Iwakuni-shi, Yanai-shi). The distribution range of Argentine ants in each area was limited to a few km except for the area in and around Hatsukaichi-shi. 2.The distribution of Argentine ants in urban parks around Hatsukaichi city was investigated from 2000 to 2005. The number of parks invaded by the ant increased from 27 to 41 during six years. 3.The Argentine ant invasion has remarkably reduced species richness of resident ants. Among 11 common epigeic species, nine species were vulnerable to Argentine ants, whereas Paratrechina sakurae and Camponotus vitiosus appeared less affected by this invasion. 4.Prey composition of the Japanese treefrog Hyla japonica was investigated in area invaded by Argentine ant Linepithema humile and area not invaded by the ant. In both area, ants were the most common taxa among prey animals in young treefrogs, constituting 82.4% of numeric proportion and 49.9% of volumetric proportion, and 42.8% of the numeric proportion and 25.7% of the volumetric proportion in invaded and uninvaded area, respectively. Among ants, the Argentine ant was most abundantin invaded area while Tetramorium tsushimae was the most common prey item in uninvaded area.

调查了阿根廷蚂蚁Linepithema humile在日本的分布及其对日本生物区系的影响。主要结果如下。1.对日本西部濑户内海沿岸沿着65个城镇的阿根廷蚂蚁分布进行了调查。我们的研究结果包括所有可用的信息，其分布在日本，直到2005年。阿根廷蚂蚁入侵了爱知县（田原市）、兵库县（神户市）、广岛县（广岛市、府中町、初日市、小野町、大竹市）和山口县（岩国市、柳井市）。阿根廷蚂蚁在各地区的分布范围仅限于几公里内的区域和周围的八日市。2.从2000年到2005年，我们调查了初日市周围城市公园中阿根廷蚂蚁的分布。在六年中，被蚂蚁入侵的公园数量从27个增加到41个。3.阿根廷蚂蚁的入侵显著减少了当地蚂蚁的物种丰富度。在11个常见的epigeic物种，9种容易受到阿根廷蚂蚁，而Paratrechina樱花和Camponotus vitiosus出现受影响较小。4.在阿根廷蚂蚁Linepithema humile入侵区和非入侵区对日本雨蛙的食物组成进行了调查。在这两个地区，蚂蚁是最常见的类群中的猎物幼树蛙，占82.4%的数量比例和49.9%的体积比例，42.8%的数量比例和25.7%的体积比例分别入侵和未入侵的地区。在蚂蚁中，入侵区阿根廷蚂蚁最多，而在未入侵区则是最常见的猎物。